/Engine/Source/Editor/ContentBrowser/Public/ContentBrowserMenuContexts.h
Returns a filtered array of assets that are of the desired class and potentially any subclasses.
[TArray](API\Runtime\Core\Containers\TArray)< [FAssetData](API\Runtime\CoreUObject\AssetRegistry\FAssetData) > GetSelectedAssetsOfType ( const [UClass](API\Runtime\CoreUObject\UObject\UClass) * AssetClass, EIncludeSubclasses IncludeSubclasses ) const